Duodenitis and duodenal ulcer. A biopsy study.
D000328:Adult; D001706:Biopsy; D004378:Duodenal Diseases / Q000473:pathology*; D004381:Duodenal Ulcer / Q000473:pathology*; D006801:Humans; D007413:Intestinal Mucosa / Q000473:pathology; D008875:Middle Aged